Demountable rim.



H. B. KEIPER.

. DEMOUNTABLE RIM. APPLICATION rmm r2341. 1911. 1,097,550, Patented May 19, 1914.

2 SHEETS-SHEET 1.

I Y W 1] v I WW 1 21m WITNESSES INVENTOR H. B. KEIPER.

DBMOUNTABLE RIM. APPLICATION FILED IEKZI: 1911.

Patented May 19, 1914.

2 SHEETS-SHEET 2.

- WITNE SE5 w Allarney To all whoml it may concern l 3e it known that I, HENRY BL lKElPER, ,a citizen of the United States, residing at Lancaster, in the county of Lancaster and 'St'ateof' Pennsylvania, have invented certain new and useful Improvements in De- I mountable Rims, of'which the following is l a specification.

. The Object of my'invention is to provide a delnountable rim for wheelsiequ pped with pneumatic, and similartires, WhBl'Blsy theremoval of a punctured or otherwise. injured i 1 tire may be readily accomplished j A further object of the provide a demountable rim use, will be securely held upon the wheel,

vhich, when in and which -.will be secured by "means seated within the folly at spaced points around A further object of the invention is to the same, of such a character that there will be-no projecting parts liable to injury and the mechanism W111 consequently .bein an operative condition at all times.

' provide means for holding the rim in position upon the wheel, of such a nature that:

the operation of the holding means will serve'to'draw'the rim onto the wheel. l'All these stated objects, and other incidental objects which will hereinafter" ap- :so' v as is'illustrated in the accompanyingdrawpear, are attained in the use of a device such ingsg and the invention resides in certain I :novel features which will be hereinafter Y fully described, and then more particularly' pointed out in theappended claims.

In the annexed drawings illustrating the preferredembodiment of the invention, Fig. 'ur'e 1 is a side elevation of a wheel equipped with my improvements. Fig. 2 is a transverse, section 'throu'ghahe felly and rim 3 showing the rim in position upon the felly V and showing the locking or holding devices in engagement with therim the parts being at Thehub 1' an is alongitudinal's'ection through so much of section. on the line 5-5 of Fig. 3. Fig.6

- adetail trans-verse section of the worm wheel which acts directly upon the rim en gaging shoe m-g ject or retract the same.

Application filed Eeliruary 21, 1911;

invention is to the'spokes 2 may of the ij ual or any preferred or convement con- I j Y HENBYB. mam-or LA'ncAs'rEmPENNsYLvANIa r w u M ammonium aim.

Specification of Letters Patent. Patented May 19, 1914.

Serial No. 61.0,030.

struction, and constitute no part of my illvention. Thefelly 3 is secured upon the outer ends of the spokes in the ordinary manner and the rim 4 maybe of any desired size or-shape corresponding to the tire to be carried thereby. of the rim, I provide a longitudinal rib '5 in the present instance at three equidistant pomts, I provide a rim-engaging shoe 7- which is seated within arecess 8 formed within the folly, and has its outer convex face provided with a central longitudinal On the inner concave'face' which is shown in the present instance as begroove 9 adapted to engage and fit smoothly and evenly against the rib 5 on the rim.- The surface of the shoe at the sides of the groove is formed into convex ribs corresponding to the grooves 6 of the rim, so that the shoe and rim are constructed with interlocking surfaces, whereby when the shoe is in engagement with the rim, the rim. will be firmly held uponthe wheel. On the inner concave side of the. shoe 7 is a pin 10 which extends into va chamberor socket formed in the fel ly and in the base ofthe recess 8, the

said pin being constructed with two inclined or cam surfaces 11 and. lso having an inclined or cam groove 12 below the said cam surfaces. It will also be noted that the diameter of the pin or stud 10 isreduced below the cam surfaces 11,- so that the ,worm wheel or driving gear l3 surrounding the pin mayproperly engage the same. This worm wheel13 isfitted around the at; or

stud 10 within the socket or chamber lgl'i of the felly, 'and'isalso provided with two 15 adapted to eng ge the cam faces' 11 ojfthe internal cam surfaces or inclined-shoulders pinor stud, so that-when the Worinwheel is rotated in the proper direction, the .pin or projected into engagement with the rim 4.

stud will'be forced upward and the shoe 7 Below the cam vshouldersf15 a small fprojection or. teat 16 is providedjinthe' bore of the wheel to engage the groove 12, so that the said pin or stud may be positively drawn inward when the proper motion is imparted to the worm wheel.

. A band or sheath 17 maybe shrunk uponl I they felly and formed with spaced. pockets" toline'. :thereces'ses 8 and1- the chambers 14, which band; may "also be extended over "the sides 'f"the felly,'as shown; At one side of the socket l t'i's a worm shaft 18 which meshes with the worm wheel 13, so that rotary motion may be imparted'to the said worm wheel and the I'lIIl engaging shoe eon-.

'sequently projected or. retracted, as may be same is being inserted or withdrawn. A

bushing or collar 21 is fitted around the shaft within the enlarged end of the bore,

I j and this bushing or collar is held firmly in pliilce by a set screw 22 inserted through the i e thefsaid bushing. The projecting end 23 of the worm shaft is flattened or may be angular to be engaged by a wrench or similar tool, so that the shaft may be rotated to impart motion to the worm wheel 13,, and ,con-

; sequently operate the shoe, as will be readily understood.

From the foregoing description; taken in connection with the accompanying drawings, it is thought the use and advantages of I my device will. be readily understood and appreciated. Assuminm the' rim to be in place upon the wheel, l twill be noted-that the rim engaging shoe-will be projected as shown in Fig. 2, so that the opposed faces of 'the shoe and the rimare in interlocking engagement. Should the tire be punctured and it be desired to remove the rim for that reason or} for any other cause the worm shaft 18 is rotated in the proper direction to cause the worm wheel 13, through the en gagement of the pin 16 and the groove12, to

. be rotated position withdraw the shoe 7 from its engagement with the rim. If two'of the shoes be thus disengaged from the rim, ordinarily the rim may then be slipped laterally from the wheel, but'if-through corrosion or any other cause the rim should not'easily yield to the force applied thereto by the hands, the third shoe may be projected to a slight additional extent and the force thus applied to the rim will sufiice to instantly loosen the same..-

a new rim or a re aired rim and t1re,'the-rim isengaged manually. with one oft-he shoes, and is then pushed over the wheel so as to partly encircle the. same, as far as may be easily done by hand. This is illustrated in Fig. 4, in which the rim is at a slight" angle to thefelly, and such a position that if the worm wheel 13' to cause its inclined shoulders to ride upon the inclined shoulders 11 of'the pin or. ,stud 10,.sa1d pin or stud will be paused to move outwardly with respect to borne by the 1 engaging shoes entirely. It will be underfrom the inner s1de thereof to engage mounting .:;its

13, when it may be easily withdraw'n. The shoe with its inwardlyv projectingstud or forced against and intd engagement' with the corrugated surface 55,. the rim. This movement of the shoe will bring the inclined walls of the groove 9 against the tapered the .fuy andjthe shoe will consequently surfaces ofthe rib 5 and consequently will cause the said rib to ride toward the base of the groove, whereby the rim will be forced laterally over the folly, so as to assume its proper working position on the wheel. The

engagement of the corrugated surfaces. of

the shoe and the rim will serve to interlock the shoe and the rim, so that lateral move-- ment of the rim will be prevented,-and it will be held firmly in place on the whe'eh It will be observed upon reference to Figs.

2 and ii: that the rimissupported by' the felly and consequently the strain will be felly and not by the rimstood of course, that the corrugated surface of the rim extends throughoutthesame, but that the surface'offthe fell'yis not corrugated and consequently the full strength of the felly is available for supporting the wheel, the tire, and the weight placed on the wheel throughthe vehicle.

By extending the corrugated surface of the rim throughout the same, I avoid the necessity of bringing the rim into a particular position relative to the felly before attempting to move the shoes into engagement with the rim. Furthermore, the outer periphery transversely to the felly so that the rim is seated against an inclined surface and, consequently when the shoe is moyed outwardly into engagement with the un t} the rim will be forced up this surface so asft'o bewe dgedfirmly'upon the wheel. It will be readily seenv that it is not necessary to detach any nuts or bolts inmount-ing my rim ,or dethe same, and that all the operating. parts are housed within the felly, so that the liability of loss or injury to the parts is avoided and time is saved in apply ing or removing the rimfi it being necessary merely to apply a wrenchtothe worm shaft to rotate thesame, as, will bereadily understood from the foregoing description and the drawings. I

The device isvery simple in construction and arrangement being free of complicated mechanism. will not add perceptibly to the weight bf thewheel. Should it be necessary for any reason to remove'the parts of' I the rim holding mechanism, the set screw of the folly is slightly inclined 22 isv withdrawn and the worm shaft 18,'be

ingithen rotated, will ride outwardly through bore until itis' free of the worm wheel pin and the worm wheelengaging the same may then be lifted bodily out of the recessed and socketed portion of the telly. I v v will be readily seen that the several locking'mechamsms are independent so. that an injury "to one does not altect the others.-

Shouldaone, locking device be rendered inoperatwe' fromlany cause,,the rim will be 'heldby the remaining locking devices and willnot slip from the wheel. It will also be observed that-the t'ra nsversely inclined en- Eterof its inner periphery will be less thanthe greatest diameter of the wheel. Consegaging "faces of the rim and wheel produce awedging action of these parts and thereby compensate for wear.

- then the rim is new, the greatest diamequently, with the partsin the position shown in Fi .4 a slight radial outward movement of ftlle shoe will cause the rim to bind securely upon thewheel. As the contacting faces wear, the shoe may be projected to a greater degree and the rim thereby driven farther on the wheel until the limit of movement has been reached as shown in Fig. 2.

Further wear then will necessitate the replacing of the parts. I

The rim and shoe need not be of the'par ticular corrugated shape shown but may be of any form which will effect an interlocking engagement. By avoiding the necessity of bringingthe rim into a particular relation to the folly, I avoidthe excessive wear on the valve which is the source of serious trouble.

In the foregoing description and the accompanying drawings,Ihave disclosed what I believe-to be the best manner of applying my invention, but it is to be understood-that .minor changes may be made therein without departing from the scope of the. invention, as set forth in the following cla1ms.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. The combination of a felly, a rim encircling thefelly and having-a transversely tapered rib on its inner circumference, a locking member seated in the felly and provided with a convex outer surface having a longitudinal groove with converging walls adapted to engage said rib, and means seat- -ed in the felly adjacent said locking member to move the same radially of the felly into and out of engagement with the rim.

said periphery, and a locking member mounted in the felly and movable radially thereof to directlycngage the rim, the said locking member and the rim having opposed angularly arrangcdengaging faces whereby the rim, will be drawn laterally onto the telly, and said rim being imperforate above said engaging faces. i

4. The combination ofa wheel having a transversely inclined outer periphery, a rim adapted-to encircle the wheel and rest upon said periphery, and a locking member mounted in the felly and movable radially thereof to directly engage the rim, the said locking member and the rim having opposed angularly arranged engaging surfaces on opposite sides of the center. of said locking member whereby the rim will be drawn laterally onto the telly.

5. The combination ofa felly, a rim ,a shoe mounted in the felly and adapted to engage the rim, a pin projecting inwardly from the shoe into the telly, a cam member seated in the felly and having a cam engagement with said pin to project and withdraw the shoe, and means also housed within the telly for operating said cam member.

(5. The conylnnation of afolly, a run, a

shoe mountec in the telly and adapted to engage the rim, a pin projecting from the shoe into the telly and having oppositely disposed cam shoulders thereon, a cam member seated in the folly and engaging said cam shoulders, and means for operating said cam member.

7. The combination of a felly, a rim, a shoe mounted in the fell'y and adapted to engage the rim, a pin projecting inwardly from the shoe into the telly and provided with oppositely disposed cam shoulders, and

acam groove below said shoulders, an operating member having inelinedshoulders en-v gaging the cam shoulders on the pin and an inwardly extending projection engaging said inclined groove, and means for rotating said operating member.

S. The combination of a felly, a rim, a shoe mounted in the telly and adapted to engage the rim, a pin projecting inwardly from the shoe into the telly and provided.

with oppositely disposed cam shoulders and a cam groove below said shoulders, a worm wheel having inelined shoulders engaging the cam shoulders on the pin and an inwardly entendingprojection engaging said cam groove, worm shaft mounted transversely in the folly and meshing with said worm wheel, I

9. The combination of a felly, arim, a. shoe mounted in the felly and adapted to en gage the rim, a pin projecting inwardly with oppositely disposedcam shoulders and a cam groove below-said shoulders, a worm wheel having inclined shoulders engaging i from the shoe into the felly and provided thecam-shoulders on the pin and an in- I wardly extending-projection engaging said -cain groove, a worm shaft mounted trans- .versely in the felly and meshing with said shoe mounted onthe felly and adapted to.

engage the rim, a pin projecting inwardly from the shoe and having a cam shoulder,

a an operating member having a cam shoulder engaging the one on the pin,'means for rotatlng. said operating member for pro ectmg said shoe, and meansfor automatically retracting said shoe when said operating,

member is'rotated' in the reverse direction.

11. The combination with a wheel having its periphery inclined transversely, a rim adapted to encircle the wheel, a shoe on the wheel adapted to .move radially thereof to engage the -rim and move the same to a snugly loindin'g position on the inclined periphery of the having a pin projecting inwardly there-- from, a cam shoulder and a cam groove, and a worm wheel and shaft cooperat ng with the shoulder and groove of the shoe 'to. effect the radial movement of the, shoe.

12. The combination of-a fel1y,a rim, a

shoe mounted in the felly an d adapted to engage the rim, a pin pro ec tingfrom the shoe and provided with oppositely disposed cam shoulders, a worm wheel having =mclined shoulders engaging the cam shoulwheel, said shoe ders on the pin, and a worm shaft mounted a transversely in the said worm wheel.

In testimony whereof I afiix my signature, in presence of two witnesses.

Vitnesses:

CHAS. E. Lone, (1.1-1. Fnos'r.

felly and meshing with J HENRY B. KEEPER: 

